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Submission #634819

# Submission time Handle Problem Language Result Execution time Memory
634819 2022-08-25T05:43:55 Z mrkhan2000 Cheap flights (LMIO18_pigus_skrydziai) C++17
100 / 100
 1218 ms 52788 KB 
#include <bits/stdc++.h>
#define ll long long
#define MOD 1000000007
using namespace std;

struct weight {
	map<pair<int,int>, int> w;
	void setW(int u, int v, int p) {
		if(u > v) swap(u,v);
		w[{u,v}] = p;
	}
	int getW(int u, int v) {
		if(u > v) swap(u, v);
		return w[{u,v}];
	}
	int count(int u, int v) {
		if(u > v) swap(u, v);
		return w.count({u,v});
	}
};

const int mxN = (int)3e5;
vector<int> adj[mxN];
weight w;

void solve() {
	int N, E; cin >> N >> E;
	vector<ll> ws(N);
	for(int i = 0; i < E; i++) {
		int U, V, P;
		cin >> U >> V >> P;
		--U, --V;
		ws[U] += P;
		ws[V] += P;
		adj[U].push_back(V);
		adj[V].push_back(U);
		w.setW(U, V, P);
	}
	ll ans = *max_element(ws.begin(), ws.end());
	set<set<int>> cycles;
	for(int u = 0; u < N; u++) {
		for(int j = 0; j < (int)adj[u].size() - 1; j++) {
			int v = adj[u][j], r = adj[u][j + 1];
			if(w.count(v, r)) {
				ans = max(ans, (ll)w.getW(u,v) + (ll)w.getW(v,r) + (ll)w.getW(u,r));
			}
		}
	}
	cout << ans << '\n';
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
#ifdef LOCAL
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);
#endif
	int test_cases = 1;
	// cin >> test_cases;
	for(int test_case = 1; test_case <= test_cases; test_case++) {
		// cout << "Case #" << test_case << ": ";
		solve();
	}
	return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 3 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 25 ms 8788 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7364 KB Output is correct
9 Correct 5 ms 7344 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct
11 Correct 5 ms 7368 KB Output is correct
12 Correct 5 ms 7368 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 6 ms 7252 KB Output is correct
16 Correct 4 ms 7276 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 5 ms 7372 KB Output is correct
19 Correct 5 ms 7508 KB Output is correct
20 Correct 4 ms 7368 KB Output is correct
21 Correct 4 ms 7368 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 3 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7252 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 25 ms 8788 KB Output is correct
7 Correct 4 ms 7252 KB Output is correct
8 Correct 4 ms 7364 KB Output is correct
9 Correct 5 ms 7344 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct
11 Correct 5 ms 7368 KB Output is correct
12 Correct 5 ms 7368 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 4 ms 7252 KB Output is correct
15 Correct 6 ms 7252 KB Output is correct
16 Correct 4 ms 7276 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 5 ms 7372 KB Output is correct
19 Correct 5 ms 7508 KB Output is correct
20 Correct 4 ms 7368 KB Output is correct
21 Correct 4 ms 7368 KB Output is correct
22 Correct 1218 ms 52788 KB Output is correct
23 Correct 970 ms 51428 KB Output is correct
24 Correct 21 ms 9172 KB Output is correct
25 Correct 8 ms 7892 KB Output is correct
26 Correct 8 ms 7892 KB Output is correct
27 Correct 5 ms 7508 KB Output is correct
28 Correct 274 ms 25496 KB Output is correct
29 Correct 157 ms 14280 KB Output is correct
30 Correct 296 ms 18392 KB Output is correct
31 Correct 4 ms 7380 KB Output is correct
32 Correct 4 ms 7376 KB Output is correct
33 Correct 351 ms 51352 KB Output is correct
34 Correct 285 ms 45644 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 172 ms 28492 KB Output is correct
2 Correct 488 ms 37868 KB Output is correct
3 Correct 104 ms 17520 KB Output is correct
4 Correct 246 ms 27432 KB Output is correct
5 Correct 664 ms 34536 KB Output is correct
6 Correct 187 ms 16248 KB Output is correct
7 Correct 176 ms 37256 KB Output is correct
8 Correct 262 ms 42312 KB Output is correct
9 Correct 7 ms 9812 KB Output is correct
10 Correct 187 ms 17560 KB Output is correct
11 Correct 183 ms 36364 KB Output is correct
12 Correct 142 ms 27492 KB Output is correct
13 Correct 4 ms 7252 KB Output is correct
14 Correct 120 ms 15820 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 172 ms 28492 KB Output is correct
2 Correct 488 ms 37868 KB Output is correct
3 Correct 104 ms 17520 KB Output is correct
4 Correct 246 ms 27432 KB Output is correct
5 Correct 664 ms 34536 KB Output is correct
6 Correct 187 ms 16248 KB Output is correct
7 Correct 176 ms 37256 KB Output is correct
8 Correct 262 ms 42312 KB Output is correct
9 Correct 7 ms 9812 KB Output is correct
10 Correct 187 ms 17560 KB Output is correct
11 Correct 183 ms 36364 KB Output is correct
12 Correct 142 ms 27492 KB Output is correct
13 Correct 4 ms 7252 KB Output is correct
14 Correct 120 ms 15820 KB Output is correct
15 Correct 4 ms 7252 KB Output is correct
16 Correct 3 ms 7252 KB Output is correct
17 Correct 4 ms 7252 KB Output is correct
18 Correct 4 ms 7252 KB Output is correct
19 Correct 4 ms 7252 KB Output is correct
20 Correct 25 ms 8788 KB Output is correct
21 Correct 4 ms 7252 KB Output is correct
22 Correct 4 ms 7364 KB Output is correct
23 Correct 5 ms 7344 KB Output is correct
24 Correct 4 ms 7252 KB Output is correct
25 Correct 5 ms 7368 KB Output is correct
26 Correct 5 ms 7368 KB Output is correct
27 Correct 4 ms 7380 KB Output is correct
28 Correct 4 ms 7252 KB Output is correct
29 Correct 6 ms 7252 KB Output is correct
30 Correct 4 ms 7276 KB Output is correct
31 Correct 4 ms 7252 KB Output is correct
32 Correct 5 ms 7372 KB Output is correct
33 Correct 5 ms 7508 KB Output is correct
34 Correct 4 ms 7368 KB Output is correct
35 Correct 4 ms 7368 KB Output is correct
36 Correct 1218 ms 52788 KB Output is correct
37 Correct 970 ms 51428 KB Output is correct
38 Correct 21 ms 9172 KB Output is correct
39 Correct 8 ms 7892 KB Output is correct
40 Correct 8 ms 7892 KB Output is correct
41 Correct 5 ms 7508 KB Output is correct
42 Correct 274 ms 25496 KB Output is correct
43 Correct 157 ms 14280 KB Output is correct
44 Correct 296 ms 18392 KB Output is correct
45 Correct 4 ms 7380 KB Output is correct
46 Correct 4 ms 7376 KB Output is correct
47 Correct 351 ms 51352 KB Output is correct
48 Correct 285 ms 45644 KB Output is correct
49 Correct 248 ms 25852 KB Output is correct
50 Correct 244 ms 26172 KB Output is correct
51 Correct 478 ms 30788 KB Output is correct
52 Correct 568 ms 33316 KB Output is correct
53 Correct 116 ms 20036 KB Output is correct
54 Correct 579 ms 35636 KB Output is correct
55 Correct 469 ms 44948 KB Output is correct
56 Correct 278 ms 32076 KB Output is correct
57 Correct 376 ms 37824 KB Output is correct
58 Correct 155 ms 20672 KB Output is correct
59 Correct 610 ms 35972 KB Output is correct
60 Correct 456 ms 34448 KB Output is correct
61 Correct 563 ms 32412 KB Output is correct